Home / 52,443.17-78,617.51-19,139.86

Finding the Fourth Proportional to 52,443.17, 78,617.51 and 19,139.86

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Solution

The fourth proportional to 52,443.17, 78,617.51 and 19,139.86 is: 28,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,443.17 : 78,617.51 = 19,139.86 : x
  2. Step 2: Convert to fraction form
    52,443.17/78,617.51 = 19,139.86/x
  3. Step 3: Cross multiply
    52,443.17x = 78,617.51 × 19,139.86
  4. Step 4: Simplify right side
    52,443.17x = 1,504,728,134.95
  5. Step 5: Solve for x
    x = 1,504,728,134.95/52,443.17
  6. Step 6: Final answer
    x = 28,692.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.